Journal of Orthopaedic Science最新文献

{"title":"A quantitative assessment of the anterior tibiofibular gap with and without weight-bearing in healthy adults: An ultrasound-based study","authors":"Tsubasa Tashiro ,&nbsp;Noriaki Maeda ,&nbsp;Shogo Tsutsumi ,&nbsp;Takeru Abekura ,&nbsp;Hinata Esaki ,&nbsp;Koki Tsuchida ,&nbsp;Sakura Oda ,&nbsp;Makoto Komiya ,&nbsp;Yasunari Ikuta ,&nbsp;Yukio Urabe","doi":"10.1016/j.jos.2024.01.008","DOIUrl":"10.1016/j.jos.2024.01.008","url":null,"abstract":"<div><h3>Background</h3><div>Difficulties in the accurate evaluation of tibiofibular clear space in plain radiographs are diagnostic problems in the clinical setting of syndesmosis injury. This study aimed to quantify the anterior tibiofibular gap (ATFG) with weight-bearing using ultrasonography.</div></div><div><h3>Methods</h3><div>In total, 32 healthy adults (16 men and 16 women) with 64 feet participated in this cross-sectional study. The ATFG was measured along the anterior inferior tibiofibular ligament for a US assessment conducted in both sitting and standing postures. The ankle joint was set on the tilt table at four different angles as follows: plantar flexion, 20° (P20); neutral position (N); dorsiflexion, 20° (D20); and dorsiflexion, 20°+ external rotation, 30° (D20ER30). The ankle joint position, sex, and side-to-side values were compared with and without weight-bearing.</div></div><div><h3>Results</h3><div>Under all ankle angle conditions, the ATFG was wider in the standing posture than in the sitting posture (p &lt; 0.001). In both sitting and standing postures, the ATFG widened with increasing dorsiflexion angle, eventually reaching a maximum at D20ER30. The widening ratio (D20ER30/N) in the standing posture was higher in women than in men (p &lt; 0.05). No statistical differences were identified side-to-side differences in the ATFG.</div></div><div><h3>Conclusions</h3><div>Ultrasound measurements for identifying unphysiological increases in ATFG with weight bearing, especially given the side-to-side differences, may provide a means for quantitatively assessing syndesmosis injury in a clinical setting. Further research is warranted to clarify direct attribution as a clinical diagnostic utility of the ATFG measurements for syndesmosis injuries.</div></div>","PeriodicalId":16939,"journal":{"name":"Journal of Orthopaedic Science","volume":"30 1","pages":"Pages 107-112"},"PeriodicalIF":1.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139923277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Patellar tendon shortening surgery restores the knee extensor mechanism in flexed knee gait in children with cerebral palsy","authors":"Henrike Greaves ,&nbsp;David Wright ,&nbsp;Antonio Eleuteri ,&nbsp;Elizabeth Ray ,&nbsp;Ornella Pinzone ,&nbsp;Alfie Bass ,&nbsp;Roger Walton ,&nbsp;Gabor Barton","doi":"10.1016/j.jos.2024.01.004","DOIUrl":"10.1016/j.jos.2024.01.004","url":null,"abstract":"<div><h3>Background</h3><div>This study evaluated a patellar tendon shortening (PTS) surgical procedure that uses an overlapping repair combined with an additional Tycron non-absorbable suture to support the shortening in children with Cerebral Palsy (CP). This study aimed to outline this surgical technique and to evaluate its effectiveness in restoring the knee extensor mechanism.</div></div><div><h3>Methods</h3><div>The sagittal plane lower limb kinematics, peak knee extensor moment, gait deviation index (GDI), localised movement deviation profile (MDP), temporospatial parameters, passive knee extension ROM, quadriceps lag, and knee extensor strength were calculated pre- and postoperatively. To determine significant differences a robust linear regression model with high breakdown point and high efficiency was fitted to the data.</div></div><div><h3>Results</h3><div>In this retrospective cohort study, a total of 41 patients with CP who were treated with unilateral or bilateral PTS in isolation or as part of single event multilevel surgery (SEMLS), with a mean age of 11.1 years were included. The knee extension angle improved at initial contact (p &lt; 0.0001), and during stance phase (p &lt; 0.0001). The peak internal knee extensor moment decreased during early (p = 0.0014) and late stance phase (p &lt; 0.0001). The quadriceps lag decreased (p &lt; 0.0001) and knee extensor strength increased (p &lt; 0.0001). The GDI improved (p &lt; 0.0001), as well as the localised MDP for sagittal angles (p &lt; 0.0001) and moments (p = 0.0001). Walking speed (p = 1.0) remained unchanged, but the cadence decreased (p = 0.024) and step length increased (p = 0.0001).</div></div><div><h3>Conclusions</h3><div>The knee extension angle and moment during stance phase improved significantly. The children with CP in this study showed improvements in knee extensor strength and quadriceps lag. Thereby it can be concluded that the PTS procedure was able to restore the knee extensor mechanism effectively.</div></div>","PeriodicalId":16939,"journal":{"name":"Journal of Orthopaedic Science","volume":"30 1","pages":"Pages 164-170"},"PeriodicalIF":1.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139542718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Japanese orthopaedic association (JOA) clinical practice guideline on the management of primary malignant bone tumors - Secondary publication","authors":"Kazuaki Tsuchiya ,&nbsp;Toshihiro Akisue ,&nbsp;Shigeru Ehara ,&nbsp;Akira Kawai ,&nbsp;Hirotaka Kawano ,&nbsp;Hiroaki Hiraga ,&nbsp;Ako Hosono ,&nbsp;Hiroyuki Hutani ,&nbsp;Takeshi Morii ,&nbsp;Hideo Morioka ,&nbsp;Yoshihiro Nishida ,&nbsp;Yoshinao Oda ,&nbsp;Akira Ogose ,&nbsp;Shoji Shimose ,&nbsp;Takehiko Yamaguchi ,&nbsp;Tetsuji Yamamoto ,&nbsp;Masahiro Yoshida","doi":"10.1016/j.jos.2023.11.007","DOIUrl":"10.1016/j.jos.2023.11.007","url":null,"abstract":"<div><h3>Background</h3><div>In Japan, there are currently no general guidelines for the treatment of primary malignant bone tumors. Therefore, the Japanese Orthopaedic Association established a committee to develop guidelines for the appropriate diagnosis and treatment of primary malignant bone tumors for medical professionals in clinical practice.</div></div><div><h3>Methods</h3><div>The guidelines were developed in accordance with “Minds Clinical Practice Guideline Development Handbook 2014″ and “Minds Clinical Practice Guideline Development Manual 2017\". The Japanese Orthopaedic Association's Bone and Soft Tissue Tumor Committee established guideline development and systematic review committees, drawing members from orthopedic specialists leading the diagnosis and treatment of bone and soft tissue tumors. Pediatricians, radiologists, and diagnostic pathologists were added to both committees because of the importance of multidisciplinary treatment. Based on the diagnosis and treatment algorithm for primary malignant bone tumors, important decision-making points were selected, and clinical questions (CQ) were determined. The strength of recommendation was rated on two levels and the strength of evidence was rated on four levels. The recommendations published were selected based on agreement by 70% or more of the voters.</div></div><div><h3>Results</h3><div>The guideline development committee examined the important clinical issues in the clinical algorithm and selected 22 CQs. The systematic review committee reviewed the evidence concerning each CQ and a clinical value judgment was added by experts. Eventually, 25 questions were published and the text of each recommendation was determined.</div></div><div><h3>Conclusion</h3><div>Since primary malignant bone tumors are rare, there is a dearth of strong evidence based on randomized controlled trials, and recommendations cannot be applied to all the patients. In clinical practice, appropriate treatment of patients with primary malignant bone tumors should be based on the histopathological diagnosis and degree of progression of each case, using these guidelines as a reference.</div></div>","PeriodicalId":16939,"journal":{"name":"Journal of Orthopaedic Science","volume":"30 1","pages":"Pages 1-17"},"PeriodicalIF":1.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141603723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Acute non-traffic traumatic spinal cord injury in the aging population: Analysis of the National Inpatient Sample 2005–2018","authors":"Zeqin Li ,&nbsp;Hua Ye ,&nbsp;Hongyu Chu ,&nbsp;Liang Chen ,&nbsp;Jun Li ,&nbsp;Jianjun Li ,&nbsp;Degang Yang ,&nbsp;Mingliang Yang ,&nbsp;Liangjie Du ,&nbsp;Maoyuan Wang ,&nbsp;Feng Gao","doi":"10.1016/j.jos.2024.03.002","DOIUrl":"10.1016/j.jos.2024.03.002","url":null,"abstract":"<div><h3>Background</h3><div>This study aimed to determine risk factors for poor in-hospital outcomes in a large cohort of older adult patients with acute non-traffic traumatic spinal cord injury (tSCI).</div></div><div><h3>Methods</h3><div>This is a population-based, retrospective, observational study. Data of older adults ≥65 years with a primary discharge diagnosis of acute non-traffic tSCI were extracted from the US National Inpatient Sample (NIS) database 2005–2018. Traffic-related tSCI admissions or patients lacking complete data on age, sex and outcomes of interest were excluded. Univariate and multivariate logistic regression analysis was used to determine associations between variables and in-hospital outcomes.</div></div><div><h3>Results</h3><div>Data of 49,449 older patients (representing 246,939 persons in the US) were analyzed. The mean age was 79.9 years. Multivariable analyses revealed that severe International Classification of Disease (ICD)-based injury severity score (ICISS) (adjusted odds ratio [aOR] = 3.14, 95% confidence interval [CI]: 2.77–3.57), quadriplegia (aOR = 2.79, 95%CI: 2.34–3.32), paraplegia (aOR = 2.60, 95%CI:1.89–3.58), cervical injury with vertebral fracture (aOR = 2.19, 95%CI: 1.90–2.52), and severe liver disease (aOR = 2.33, 95%CI: 1.34–4.04) were all strong independent predictors of in-hospital mortality. In addition, malnutrition (aOR = 3.19, 95% CI: 2.93–3.48) was the strongest predictors of prolonged length of stay (LOS).</div></div><div><h3>Conclusions</h3><div>Several critical factors for in-hospital mortality, unfavorable discharge, and prolonged LOS among US older adults with acute non-traffic tSCI were identified. In addition to the factors associated with initial severity, the presence of severe liver disease and malnutrition emerged as strong predictors of unfavorable outcomes, highlighting the need for special attention for these patient subgroups.</div></div>","PeriodicalId":16939,"journal":{"name":"Journal of Orthopaedic Science","volume":"30 1","pages":"Pages 66-72"},"PeriodicalIF":1.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140768903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Radiographic and clinical comparisons between loose-fit and press-fit stems in monopolar radial head arthroplasty for comminuted radial head fractures","authors":"Haruhiko Shimura ,&nbsp;Yoshiaki Wakabayashi ,&nbsp;Tetsuya Yamada ,&nbsp;Ken Shirakawa ,&nbsp;Tetsuya Sato ,&nbsp;Koji Fujita ,&nbsp;Yumi Niizeki ,&nbsp;Shiro Suzuki ,&nbsp;Hidetoshi Kaburagi ,&nbsp;Hidetsugu Suzuki ,&nbsp;Akimoto Nimura","doi":"10.1016/j.jos.2024.02.002","DOIUrl":"10.1016/j.jos.2024.02.002","url":null,"abstract":"<div><h3>Purpose</h3><div>Few clinical studies have compared the operative outcomes between loose- and press-fit stems in radial head arthroplasty (RHA). We aimed to evaluate the radiographic and clinical results of the two radial head implant concepts.</div></div><div><h3>Methods</h3><div>In this retrospective multicenter study, 32 patients (24 women and 8 men) with a mean age of 63.1 years who underwent RHA for comminuted radial head fractures were reviewed between 2005 and 2021. Seventeen patients underwent RHA with a loose-fit stem (L-group), whereas the remaining fifteen patients underwent RHA with a press-fit stem (P-group). The mean follow-up period was 40.1 ± 9.9 months, with the minimum follow-up duration of 12 months. The radiographic findings were evaluated for periprosthetic osteolysis; furthermore, clinical outcomes were analyzed to measure the range of motion of the elbow. The rate of reoperations and prosthesis removal were also reviewed.</div></div><div><h3>Results</h3><div>The general characteristics of the patients were similar in the two groups. The rate of periprosthetic osteolysis was 17.6% in the L-group, whereas it was 53.3% in the P-group. The mean elbow flexions were 128° and 133° in the L- and P-groups, respectively. The mean elbow extensions were −12° and −9° in the L- and P-groups, respectively. The rate of reoperation was 23.5% in the L-group and 15.2% in the P-group. One patient in the L-group had the prosthesis removed because of surgical site infection, whereas one patient in the P-group had the prosthesis removed owing to painful loosening.</div></div><div><h3>Conclusions</h3><div>No significant differences in the clinical outcomes and reoperation rate were observed between the two radial head implant concepts in this study. However, osteolysis occurred more frequently in the P-group. Although patients with periprosthetic osteolysis are currently asymptomatic, they should be carefully followed up for the symptoms in the long term.</div></div>","PeriodicalId":16939,"journal":{"name":"Journal of Orthopaedic Science","volume":"30 1","pages":"Pages 147-151"},"PeriodicalIF":1.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139717678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Equol production capability and family history as risk factors for hand osteoarthritis in menopausal and postmenopausal women. Cross-sectional study","authors":"Yuichi Hirase,&nbsp;Arisa Okubo","doi":"10.1016/j.jos.2024.02.001","DOIUrl":"10.1016/j.jos.2024.02.001","url":null,"abstract":"<div><h3>Background</h3><div>Hand disorders are common in menopausal women. Equol is a soy metabolite produced in humans and its production level differs among individuals. The purpose of this research is to investigate the correlative relationship between variables indicating equol production levels and the occurrence of hand disorders in menopausal and postmenopausal women.</div></div><div><h3>Methods</h3><div>Female subjects were divided into two groups: women 45–70 years of age with hand osteoarthritis (patient group) and women in the same age range without hand osteoarthritis (control group). The equol production level of each subject was estimated by measuring her urine equol concentration. We also surveyed the subjects’ family histories of osteoarthritis.</div></div><div><h3>Results</h3><div>Equol levels in the patient group were significantly lower than those in the control group (p &lt; 0.05). This difference was most apparent for women in their 50s. Individuals with family histories of Heberden's and Bouchard's nodes were found to be 48.1 times more likely to develop these conditions than individuals in the control group.</div></div><div><h3>Conclusions</h3><div>Women with early menopausal hand symptoms (i.e., stiff and arthritic hands) often develop hand osteoarthritis during their late menopausal and postmenopausal periods, which may cause their QoL to significantly deteriorate. Although a link between the probability of women developing hand osteoarthritis and their clinical backgrounds (i.e., family history) had been suspected, it had not been thoroughly investigated. Our survey of women with and without Heberden's nodes and Bouchard's nodes found a significant correlation between the likelihood of women developing osteoarthritis and a family history of this disease. We also found a significant correlation between the likelihood of women developing hand osteoarthritis and their equol production levels. These results indicate that women with family histories of finger osteoarthritis and low equol production have higher risks of developing finger osteoarthritis.</div></div>","PeriodicalId":16939,"journal":{"name":"Journal of Orthopaedic Science","volume":"30 1","pages":"Pages 91-95"},"PeriodicalIF":1.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139741302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"'Synchronicity of science, passion and art in orthopedic oncology'.","authors":"Kanya Honoki","doi":"10.1016/j.jos.2024.12.002","DOIUrl":"https://doi.org/10.1016/j.jos.2024.12.002","url":null,"abstract":"","PeriodicalId":16939,"journal":{"name":"Journal of Orthopaedic Science","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142895567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-intensity strength training improves mobility in patients after hip fracture: A meta-analysis of randomized controlled trials.","authors":"Fengfei Lin, Bin Chen, Ke Zheng, Chaohui Lin","doi":"10.1016/j.jos.2024.11.009","DOIUrl":"https://doi.org/10.1016/j.jos.2024.11.009","url":null,"abstract":"<p><strong>Background: </strong>Hip fracture affects millions of persons and is associated with excess morbidity and mortality. More knowledge is needed to regard the prolonged effects of intensive exercise in relatively frail hip fracture patients. In this meta-analysis, we want to determine whether intensity strength training in patients after hip fracture is superior to general exercises in improving physical function.</p><p><strong>Methods: </strong>We searched electronic literature databases, including Pubmed, Cochrane, MEDLINE, Google Scholar, and Embase from inception to November 2023 for randomized controlled trials (RCTs) comparing training group with control group in patients after hip fracture. The primary endpoint of this meta-analysis was Berg balance scale (BBS). The secondary outcomes were Short-Form 36 physical function score (SF-36 physical function score) and Six-minute walk test (6MWT).</p><p><strong>Results: </strong>We included 7 RCTs with a total of 665 patients. The BBS and SF-36 physical function score were significantly better in the training group (MD = 4.45, 95%CI 1.47 to 7.43, Z = 2.93, P = 0.003) and (MD = 16.31, 95%CI 4.92 to 27.69, Z = 2.81, P = 0.005) respectively. The result showed that the 6MWT was significantly longer in the training group (MD = 83.32, 95%CI 46.73 to 119.91, Z = 4.46, P < 0.00001).</p><p><strong>Conclusions: </strong>Our meta-analysis shows that intensity strength training, including strength training, balance task-specific training, and upper-body exercise training in patients after hip fracture, is superior to general exercises in improving BBS, SF-36 physical function score and 6MWT.</p>","PeriodicalId":16939,"journal":{"name":"Journal of Orthopaedic Science","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142895566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Histological evaluation of medial collateral ligament bursa injection, a new conservative treatment, in a rabbit model of medial meniscus horizontal tear.","authors":"Tomoyuki Kanayama, Junsuke Nakase, Kazuaki Yoshioka, Yasushi Takata, Yoshihiro Ishida, Yusuke Yanatori, Naoki Takemoto, Satoru Demura","doi":"10.1016/j.jos.2024.11.010","DOIUrl":"https://doi.org/10.1016/j.jos.2024.11.010","url":null,"abstract":"<p><strong>Background: </strong>The ultrasound-guided medial collateral ligament bursa injection technique is safe, reproducible, and effective in treating symptomatic degenerative medial meniscal tears. However, the mechanisms of action and optimal drug combinations remain unclear. This study aimed to evaluate and compare the histological changes caused by injections of corticosteroids and hyaluronic acid into the medial collateral ligament bursa in a rabbit model of medial meniscus horizontal tears. Furthermore, we compared neovascularization and neurogenesis between different treatments.</p><p><strong>Methods: </strong>The medial meniscus horizontal tear rabbit model was created. Medial collateral ligament bursa injection with triamcinolone acetonide, purified sodium hyaluronate, saline, or needle alone was performed after model creation. The area of the medial collateral ligament bursa was measured. Immunostaining validation (cluster of differentiation31, smooth muscle alpha-actin, calcitonin gene-related peptide, and 4',6-diamidino-2-phenylindole) of the medial collateral ligament bursa injections was performed 2 and 4 weeks after injection.</p><p><strong>Results: </strong>The group injected with triamcinolone acetonide had a smaller area of the medial collateral ligament bursa than did the other groups. The groups injected with triamcinolone acetonide and purified sodium hyaluronate had lower neovascularization levels than did the other groups. The calcitonin gene-related peptide count was lower in the group injected with triamcinolone acetonide than in the other groups. Corticosteroid and hyaluronic acid injections into the medial collateral ligament bursa suppressed neovascularization and calcitonin gene-related peptide expression, while steroid injections caused adipose tissue and synovial tissue atrophy.</p><p><strong>Conclusions: </strong>The present study revealed that ultrasound-guided triamcinolone or hyaluronic injections into the medial collateral ligament bursa inhibited neovascularization within it and concomitantly reduced calcitonin gene-related peptide release from neurogenesis. Hence, medial collateral ligament bursa injection should be considered a new treatment option for symptomatic horizontal meniscal tears.</p>","PeriodicalId":16939,"journal":{"name":"Journal of Orthopaedic Science","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142854557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reproducibility of dynamic balance and anterior tibiofibular gap measurements in men and women: A menstrual cycle-based longitudinal study.","authors":"Rami Mizuta, Noriaki Maeda, Tsubasa Tashiro, Miki Kawai, Sakura Oda, Ayano Ishida, Rurina Yoshiara, Satoshi Arima, Yukio Urabe","doi":"10.1016/j.jos.2024.11.008","DOIUrl":"https://doi.org/10.1016/j.jos.2024.11.008","url":null,"abstract":"<p><strong>Background: </strong>The reproducibility of dynamic balance is an essential component of athletic performance and injury prevention, although it is affected by sex differences. This study aimed to confirm the reproducibility of repeated dynamic balance measurements and ultrasonography assessments of the anterior tibiofibular gap that may contribute to changes in dynamic balance for each sex.</p><p><strong>Methods: </strong>This was a longitudinal study involving 48 feet, with 12 men and 12 women. Measurements for men were obtained four times, approximately once a week, and for women, once during each of the four periods of the menstrual cycle (menstrual, follicular, ovulation, and luteal phases). The measures included dynamic balance in a single-leg jump with forward landing and the anterior tibiofibular gap measurement in standing and sitting positions; rate of change in the anterior tibiofibular gap was calculated from the values in standing and sitting positions.</p><p><strong>Results: </strong>The intraclass correlation coefficient for dynamic balance was excellent for men at 0.936 (0.881-0.969) and good for women at 0.843 (0.708-0.925). Regarding the anterior tibiofibular gap, the intraclass correlation coefficient for standing and sitting were 0.999 (0.997-0.999) and 0.998 (0.996-0.999), respectively, in men; and 0.976 (0.955-0.988) and 0.991 (0.984-0.996), respectively, in women, with excellent values for both sexes. Whereas no significant changes in dynamic balance and rate of change in the anterior tibiofibular gap were observed in the four measurements in men (p > 0.05), there was a significant variation in women (p < 0.05).</p><p><strong>Conclusions: </strong>While reproducibility of dynamic balance and anterior tibiofibular gap measurements was high overall, it was lower in women than in men. Women exhibited variations in these measurements during each period of the menstrual cycle, peaking during ovulation. Recognizing these fluctuations could inform injury prevention strategies tailored to sex-specific differences in dynamic balance and ligament extensibility.</p>","PeriodicalId":16939,"journal":{"name":"Journal of Orthopaedic Science","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142854572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}